Topas GmbH
Gasanstaltstraße 47
D-01237 Dresden

Tel:     +49 (351) 2166 430
Fax:    +49 (351) 2166 4355

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Topas has reached the final stage of two projects funded by the ESF (European Social Fund). We look forward to the successful completion of this research work on the key… more

We are pleased to announce that the article “Development of a rat capnoperitoneum phantom to study drug aerosol deposition in the context of anticancer research on peritoneal carcinomatosis” will be… more

What are the relevant technologies for generating reference aerosols? How can filter media for personal protection be reliably characterised? What are the latest test systems and technologies for automotive emission… more

Following the title “Aerosol technologies in the COVID-19 pandemic”, at today’s 13th Dresden Colloquium on Air Pollution Control one of our experts will talk about these topics which kept us… more

We took the chance and finally had a wonderful barbecue again. And with that we say: THANK YOU to a all Topas employees for the cohesion of the last few… more

During the pandemic, remotely supported installations and remote site acceptance tests (SAT) have been a good solution for both parties. Now we are glad to finally install our equipment in… more

Our enthusiasm belongs to aerosols and everything that has to do with it. We told the pupils of a Dresden primary school about our passion. In four exciting research lessons,… more

The pandemic situation is not easy for any industry. An increasing problem is the shortage of raw material. This will probably also lead to difficulties in supply for us in… more

Pore size measurements are state of the art since decades. It provides pore structure analysis for various applications in the field of filtration, hygiene and tissue engineering, whereas final product… more

With the new AFC 136 Filter-Element-Test System, Topas is able to reliably and quickly test gasoline particulate filters (GPF). Such ceramic car exhaust filters are state of the art for… more

The change into the new year also means a change at the top management of Topas. Dr.-Ing. Andreas Rudolph, co-founder and managing director of the engineering company Topas GmbH hands… more

In addition to smear and droplet infection, aerosol transmission is also a key contributor to the spread of the SARS-CoV-2 virus. Topas supported the Gesellschaft für Aerosolforschung GAeF in their… more

How quickly a year goes by is particularly noticeable in our growing workforce: in the past 12 months, 25 new employees have started work at our new headquarters at Gasanstaltstraße 47 nearby… more

The holiday season 2020 looks a little different for everyone. For Topas as well: we have continued to win new staff for our production and have introduced a two-shift system… more

In the last few weeks most of us have fortunately returned to everyday life a little bit. Many positive things have happened with TOPAS since then, and we would like… more

Dear business partners and friends. First of all we hope all of you are doing well in this completely new critical global situation due to Covid-19.
Current… more

We are happy to announce that our latest image brochure has been translated to Chinese中國, Korean 한국의, Russian русский, French français and Spanish español.
This helps us to share… more

For the 13th time, futureSAX GmbH hosted the Alumni Breakfast. This time, Topas hosted the event and welcomed the participants for mutual exchange. Discussions were held about start-up strategies and… more

The contents of a study at the university are often grey theory. In January 2020, students from Technical University of Freiberg were able to gain an insight into an exciting… more

Since 1999 is the quality management of Topas GmbH got a successful certification according to DIN EN ISO 9001. Within the context, the 13TH monitoring audit took place assessing the… more

For an overall overview of Topas trade fair participations and company holidays, we have prepared an annual planmore

Topas GmbH was once again honored with the seal “Innovative through Research” for special commitment to research and development by the Stifterverband für die Deutsche Wissenschaft e.V.


The aerosol generator ATM 228 according to VDI 3491-2 for clean room validation according to ISO 14644-3 is a further development of themore


For over two decades the name Topas has stood for high-quality products and innovative efforts in the field of particle and aerosol technology – developed, designed and made in Germany.

Both domestic customers and customers abroad have taken profit from our ideas and experiences as a developer and manufacturer of equipment for the generation, measurement and dilution of airborne particles (aerosols) and complex test systems for filters, filter media and separators as well as for liquid filters.

The Topas company philosophy enables a fast response to changes on the current market and realization of customer demands.

Our own research and development as well as the close cooperation with universities and research institutions has tremendously expanded our know-how which leads to new solutions for our customers.

Keeping close to market demands we have been expanding our product range and continuously focus our efforts on product optimization and quality improvement.


Topas Competence:

  • Filter Test Systems
  • Blow- by Measurements
  • Aerosol Dilution Systems
  • Particle Measuring Systems
  • Pore Size Measurement
  • Special Developments



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Coming events

8. - 10.3.2022
5. - 9.10.2022
13th World Filtration Congress

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